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Old 20-08-2018, 12:48 PM   #1807
Honorary Member
Join Date: Jul 2015
Posts: 103,183
For a 3 feet tank(90x45x50),how to see if it is overcrowded?
one is to test the water for nitrate.
heavy bioload will stress your filtration sys and you need to keep up with water change.
also look closely at the water. if the air bubbles don't burst within 10-15 sec or so, that means water getting bad liao.

another way is to observe your fish behavior.
are they keep getting sick?
are they fighting all the time?
is every fish getting enough share of their food?
seek and destroy!!
tankgunner is offline